.nav-swiper-container{
    overflow: hidden;
    position: relative;
}
.nav-swiper-container .swiper-slide{
    text-align: center;
    overflow: hidden;
}
.slide-img{
    min-height: 5rem;
    width: 100%;
    /*height:50vw;固定比例*/
}
/*计算盒子*/
.swiper-count-box{
    position: absolute;
    bottom: 10px;right: 10px;
    background: rgba(0,0,0,.4);
    z-index: 100;
    min-width: 4rem;
    color: white;
    font-size: 1.4rem;
    text-align: center;
    border-radius: 4px;
    padding: 3px 0;
}